JP3082155B2 - Coolant spray jacket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling liquid jet jacket used for induction hardening or the like.

[0002]

2. Description of the Related Art A conventional cooling liquid jet jacket will be described with reference to FIG . The applicant of the present application states that the cooling liquid L colliding with the upper and lower parts of the cylindrical workpiece W
Due to the problem that the collision angle with respect to the work W is small and the work W exceeds the work W in the collision town, and the problem that the work W is crossed without colliding with the work W, a large amount of so-called ineffective liquid that does not contribute to cooling is generated, In order to reduce the cooling efficiency by obstructing the cooling operation and to use the cooling liquid L more than necessary, it is necessary to use a pump having a larger capacity. In view of the high cost, Jpn.
No. 3 was filed.

[0003] The invention according to this application is based on the fact that a cylindrical work W to be induction hardened is partially provided on the circumferential surface of the cylindrical work W.
A jacket 700 in which the cooling liquid L is introduced, and a center formed on the work facing surface 710 of the jacket 700 and parallel to the center line of the columnar work W. It has a number of nozzle holes 711, each of which inclines inward across the line.

In FIG. 4 , 720 is a rear portion of the jacket, 721 is an introduction hole for introducing the cooling liquid L into the jacket 700, 500 is a pressure equalizing plate, 510 is a round hole of the pressure equalizing plate 500, and 620 supports the pressure equalizing plate 500. Legs.

That is, the invention according to the present application aims at reducing the so-called ineffective liquid by increasing the collision angle of the cooling liquid jetted from a large number of inwardly inclined nozzle holes with the work. is there.

[0006]

However, the above-described conventional jacket for cooling liquid injection has the following problems. In other words, when the diameter of the work or the distance from the work to the cooling liquid spray jacket changes, the inclination of the nozzle hole must be changed accordingly, so that various types of cooling liquid spray jackets corresponding to the work and the like are required in advance. You have to be prepared.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a cooling fluid jetting jacket capable of coping with a plurality of types of works having different diameters and different distances to the cooling fluid jetting jacket. And

[0008]

According to a first aspect of the present invention, there is provided a jacket for cooling liquid injection, the direction of the cooling liquid injected from the nozzle hole being changed appropriately. The apparatus has an opened injection direction variable member, and a jacket main body to which the injection direction variable member is displaceably attached.
Male thread on the peripheral surface of the material, front on the jacket body
Female threads corresponding to the male threads are formed respectively.
And the jacket body is
Notches exposing the peripheral surface of the shooting direction variable member are front and rear
Is formed.

In the cooling liquid jet jacket according to a second aspect, the jetting direction variable member is formed in a rod shape.
A nozzle hole is opened in a direction perpendicular to the axis direction, and is rotatable around the axis.

According to a third aspect of the present invention, a direction changing means is formed in the injection direction changing member.

[0011]

[0012]

FIG. 1 is a schematic sectional view of a cooling liquid jet jacket according to an embodiment of the present invention, and FIG. 2 is a drawing of the cooling liquid jet jacket, and FIG. Figure,
(B) is a cross-sectional view taken along the line AA of FIG. (A), and FIG.
FIG. 3B is a sectional view taken along the line BB of FIG.
Schematic disconnection of two jetting direction variable members used for a ket
FIG.

The jacket for jetting a coolant according to the present embodiment is a jacket for jetting a coolant which can appropriately change the direction of a coolant L jetted from a nozzle hole.
The apparatus includes two jetting direction variable members 100A and 100B having nozzle holes 110A and 110B , and a jacket body 200 to which the jetting direction variable members 100A and 100B are displaceably attached.
On the peripheral surfaces of the members 100A and 100B, a male screw portion 130A is provided.
130B, the male body is attached to the jacket main body 200.
Female screw portion 250A corresponding to the threaded portions 130A and 130B,
250B are formed respectively, and the jacket book
The body 200 is screwed into the female screw portions 250A and 250B.
The peripheral surfaces of the injection direction variable members 100A and 100B are exposed.
Notches 260A and 260B are formed on the front and rear surfaces.
ing.

The injection direction changing members 100A, 100B
Is formed in a rod shape, and the nozzle holes 110A, 1
10B is opened in a direction orthogonal to the axis X direction. The lengths of the jetting direction variable members 100A and 100B are set corresponding to the lengths of the work W, and the nozzle holes 110A and 110B correspond to the amount of the cooling liquid L to be jetted to the work W. In addition, the number, size, mutual positional relationship, and the like are set. Such injection direction variable section
The materials 100A and 100B have external thread portions 130A and 1
30B are formed. In addition, the male screw portions 130A, 1
30B is the entire circumference of the injection direction variable members 100A and 100B.
It is not necessary to form it on the surface, even if it is formed only on a part
Good.

A direction changing means 120A is formed at one end of the injection direction changing member 100A.
As shown in FIG. 2, the direction changing means 120A is formed as a regular hexagonal projection similar to a bolt head.

The other injection direction variable member 100
B has the same configuration as the above-described injection direction variable member 100A. However, the nozzle hole 110B is
It is not necessary to have the same number, size, and mutual positional relationship as those of 0A, and it is needless to say that it can be changed as appropriate according to the work W.

On the other hand, the jacket main body 200 is integrally
And formed on the male screw portions 130A and 130B.
Two corresponding female threads 250A and 250B are formed in parallel
It is being done. Moreover, the female screw portion 250A,
250B, the screwed injection direction variable members 100A, 1
Notches 260A and 260B exposing the peripheral surface of 00B are in front.
It is formed on the surface and the rear surface.

That is, the injection direction variable members 100A, 1
00B is screwed into the female screw portions 250A and 250B.
And the nozzle holes 110A, 110B are formed with the notches 260A,
With the jacket exposed to 260B
Will be attached. That is, in this embodiment,
Is formed on the peripheral surface of the injection direction variable members 100A and 100B.
Male threads 130A, 130B and jacket body
Female screw parts 250A and 250B formed in the part 200
Thus, the fixing means is constituted.

Here, the injection direction variable members 100A, 10A
Change the direction of 0B nozzle holes 110A and 110B
As described later, the injection direction variable members 100A, 10A
Direction changing means 120A, 1 provided at one end of
20B of the injection direction variable members 100A, 100B.
The screwing state with respect to the female screw portions 250A and 250B is changed.
You just need to

Further , the injection direction changing members 100A, 100
B is a male screw portion 130A, 130B and a female screw portion 250.
A, 250B to screw into the jacket body 200
Cooling from the gap due to the wedge action of the screw
There is no possibility that the liquid L leaks.

On the other hand, the jacket book constructed as described above
On the rear side of the body part 200, a jacket lid body 40 of a substantially gutter is provided.
0 is attached. With this jacket lid 400
Coolant L
Is supplied.

The equalizing plate 5 is provided on the jacket lid 400.
00 is provided. This equalizing plate 500 includes a number of
Round holes 510 are staggered with uniform density over the entire surface
And the legs 520 allow the jacket body 20
0 so that it is parallel to
Is attached.

The pressure equalizing plate 500 is guided from the introduction hole 410.
Nozzle holes 110A, 221 and 110 for the entered cooling liquid L
The pressure on B is made uniform. That is,
The cooling liquid L introduced from the inlet 410 is supplied to the pressure equalizing plate 500.
If there is no nozzle hole 110 directly facing the introduction hole 410
A, 221 and 110B spray high-pressure coolant L
Nozzle holes 110A that are not directly opposed to the introduction holes 410,
From 221 and 110B, a lower pressure coolant L is supplied.
Will be injected. These nozzle holes 110A, 22
Difference in injection pressure of coolant L depending on the position of 1, 110B
Provides a degree of cooling depending on the position of the workpiece W,
This causes a difference in strength after quenching, cracks, and the like.

The equalizing plate 500 solves such a problem.
And the cooling liquid L introduced from the introduction hole 410.
Once hits the equalizing plate 500, and the holes 51 of the equalizing plate 500
0 to the nozzle holes 110A, 221 and 110B.
Supply, the nozzle holes 110A, 221 and 110B
Regardless of the position, each nozzle hole 110A, 221, 110
Since the pressure of the cooling liquid L injected from B becomes equal,
You.

In the above-described embodiment, the direction changing hand is used.
Steps 120A and 120B are regular hexagons as well as bolts.
Of the present invention.
However, it is not limited to this. Injection direction variable member 1
00A and 100B can be rotated around the axis X.
If it is something, for example, such as a hexagon socket head bolt
It can be a hexagonal hole, plus or minus
It may be a groove corresponding to the driver. Also, this direction
The changing means 120A and 120B are provided by the injection direction changing member 100.
A, 110B need not be provided at one end,
The front side of the jacket body 200
It may be made to project to

Also, the injection direction variable member 100A is installed.
Nozzle holes 110A are described as one set.
However, the present invention is not limited to this. For example, figure
3A, two sets of nozzle holes 1 orthogonal to each other
11A and 112A are opened, and one of the nozzle holes 11
Only 1A is exposed on the front and back of jacket body 200.
It may be issued. Then the unexposed nose
The cooling liquid L is not injected from the hole 112A.
In this case, the size of the two sets of nozzle holes 111A and 112A
If the number, etc. are different, depending on the workpiece W
Thus, the size of the nozzle hole can be appropriately changed.
The same applies to the injection direction variable member 100B.

As shown in FIG. 3B, three or more sets
Nozzle holes 111A, 112A, 113A
Is also possible. Thus, one injection direction variable member 1
When a plurality of nozzle holes are provided in 00A, the coolant L
Only the nozzle hole to be injected is the jacket body 200
It is important to configure the front and rear
is there.

Further, in the above-described embodiment, two injections
Although the direction changing members 100A and 100B are provided,
The coolant spray jacket according to the invention is not limited to this.
Needless to say, one or three injection direction variable members
It may be the above.

[0029]

【The invention's effect】 The jacket for cooling liquid injection according to claim 1.
Changes the direction of the coolant injected from the nozzle holes as appropriate.
Coolant spray jacket that can be
Injection direction variable member with a chiral hole and this injection direction
The jacket body to which the variable member is displaceably mounted
And a male screw is provided on the peripheral surface of the injection direction variable member.
The jacket corresponds to the male thread on the jacket body
Female threads are formed, and the jacket
The main body has an injection direction variable member screwed to the female thread.
Notches that expose the peripheral surface are formed on the front and rear surfaces.
You.

For this reason, the jacket of the injection direction variable member
When attaching to the main unit, screw the male and female threads together.
Done more easily. Also, the rotation of the injection direction variable member
Very easy, between the male and female threads
There is no danger of coolant leakage due to the wedge effect.

Further , the jacket for injecting the coolant according to claim 2 is provided.
The injection direction variable member in the unit is formed in a rod shape.
Nozzle opening in the direction perpendicular to the axis
And it is rotatable around the axis,
Combined with the effect of easily changing the coolant spray direction
I do.

[0032] Furthermore, a cooling liquid injection jar according to claim 3.
The jet direction variable member in the bracket has a direction variable
Means are formed. Therefore, the rotation of the injection direction variable member
Movement, that is, it is easy to change the coolant spray direction.
It also has the effect of

[0033]

[0034]

[0035]

[0036]

[0037]

[0038]

[0039]

[0040]

[0041]

[0042]

[0043]

[0044]

[0045]

[0046]

[0047]

[0048]

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view of a cooling liquid injection jacket according to an embodiment of the present invention.

FIG. 2 is a drawing of this jacket for jetting coolant.
(A) is a schematic front view, and (B is A in FIG.
FIG. 2C is a sectional view taken along line A, and FIG. 2C is a sectional view taken along line BB in FIG.
FIG.

FIG. 3 shows two jets used in a coolant jet jacket.
It is a schematic sectional drawing of a shooting direction variable member.

FIG. 4 is a schematic diagram of a conventional cooling liquid spraying jacket of this type .
FIG.

[Explanation of symbols]

 100A, 100B Injection direction variable member 110A, 110B Nozzle hole 200 Jacket body

Claims (3)

(57) [Claims] 1. A cooling liquid jetting jacket capable of appropriately changing the direction of a cooling liquid jetted from a nozzle hole, wherein a jetting direction variable member having a nozzle hole is formed, and the jetting direction variable member is displaceable. A jacket main body to be attached ,
A male screw is provided on the peripheral surface, and the male
Female screw parts corresponding to the screw parts are formed respectively,
Injection method screwed into the female thread on the jacket body
Notches exposing the peripheral surface of the variable direction member are formed on the front and rear surfaces.
A cooling liquid spray jacket characterized by being formed . 2. The variable injection direction member is formed in a rod shape, has a nozzle hole opened in a direction orthogonal to the axis of the member, and is rotatable around the axis. The cooling liquid injection jacket according to claim 1, wherein 3. The injection direction changing member is formed with a direction changing means.
A jacket for cooling liquid injection according to the above description.